-
-
Skip navigation
(Access key: S).
Contact information.
Currently there are three nasal prongs connected to a child during polysomnography: a resistor to detect temperature difference between inhaled and exhaled air, pressure sensors that show a flattening pressure profile during upper airway narrowing, and CO2 sampling tubes to sense exhaled CO2. This is inefficient and uncomfortable for the child. The goal is to design and develop a prototype that combines these three devices into one apparatus that samples from both the nose and the mouth, and attaches to the child in both a durable and comfortable fashion.
From left to right: Jason Tham, Nicole Daehn, Robyn Hrobsky, and Lindsey Carlson
| Week | Reporting Period Beginning | Activities |
|---|---|---|
| 1 | January 23 | Scheduled all client meetings for semester, assigned new team goals, discussed tops/questions to talk about at first client meeting, and assigned background research for alternative ways to attach thermistors to cannula |
| 2 | January 30 | Setting up sleep lab visit to test device in progress, called Grass company about ordering connectors, team meeting to test prototype with NI data acquisition device and soldering connectors to device |
| 3 | February 6 | Grass Technologies, Braebon, Plastics1, and Tharksons were contacted about safety connectors and thermistors and tested thermistors and cannula using labjack and breadboard |
| 4 | February 13 | Confirmed appointment for Sleep Lab on Feb. 25, worked on circuit to get best signal from thermistors, and started writing testing protocol |
| 5 | February 20 | Soldered on conectors, finished writing testing protocols for Sleep Lab, tested device in Sleep Lab with Alice software |
| 6 | February 27 | Performed temperature test, analyzed results from Sleep Lab, completed mid-semester presentation |
| 7 | March 6 | Found EDF to ASCII converter, researched medical thermistors, received list of sleep labs to contact |
| 8 | March 13 | Brainstormed ideas for what to discuss with sleep labs, looked at WARF website to protect our idea, and called respironics to find out about what filters are applied on the TFlow (thermistor channel) for the Alice system, found ProTech thermistor specs, and found prices for medical thermistors on Digikey |
| 9 | March 20 | Picked out and ordered medical thermistors, finalized survey for sleep labs, contacted a few sleep labs |
| 10 | March 27 | Built new prototype with medical thermistors and scheduled a visit to the sleep lab |
| 11 | April 3 | Performed temperature test and updated PDS and WARF form |
| 12 | April 10 | Soldered connectors onto new prototype, tested new prototype at Sleep Lab, finalized WARF form, and contacted sleep labs |
| 13 | April 17 | Worked on final presentation and poster and began working on final paper and did some final evaluations on prototype |
| 14 | April 24 | |
| 15 | May 1 |
